Specialty tools expressly made or adapted for cleaning out the cracks and crevices in bedrock. Often the best gold hides in the little cracks of exposed bedrock. A common tactic (Called sniping for gold) is to stroll the sides of a river where the bedrock slopes into the river and clean out all the little nooks and crannies where gold gets lodged during floods. You'll be amazed how much gold can get wedged into a small bedrock crack. So bust open some cracks and strike it rich!